Liebherr Machines Bulle KD45V20-6CES

The register lists here 75 versions with 140 to 4,290 kW rated output at 1,500 to 2,100 rpm, from four- to 20-cylinders with 126 to 175 mm bore and 150 to 215 mm stroke. Maximum torque ranges from 990 to 22,759 Nm. Among the emission stages, Tier 4 (Final or Phase-in) leads ahead of the older Tier 2; the power category above 560 kW under 40 CFR 1039 forms the clear majority of this collective page.

The large V-engines on this page chiefly power Liebherr's own mining haul trucks, large-class hydraulic excavators and crawler cranes; in the mining segment Liebherr thus competes directly with the established large-engine makers Cummins, MTU/Rolls-Royce Power Systems and Caterpillar.

On a used purchase of these large engines, the documented service history of the turbocharger (waste-gate or fixed design, depending on the model), the injection system and the cooling circuit matter above all, since repairs at this engine size cause high downtime costs; on the older Tier 2 versions without exhaust aftertreatment, oil consumption and compression values also count. Service and spare parts run through Liebherr's own workshop network for mining and construction machinery technology.